Molding-machine.



WITNESSES PATENTED MAY 26. 1908.

W. W. DOOLITTLB.

MOLDING MACHINE.

APPLICATION FILED NOV,14, 190s.

INVENTOR Q fiamm/wmm r": nonms mums ca., WASHINGTON, o, c.

UNITED STATES PATENT OFFICE.

WILLIAM W. DOOLITTLE, OF EVANSTON, ILLINOIS, ASSIGNOR TO CRANE COMPANY, OF

' CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MOLDING-MACHINE.

Application filed November 14, 1906.

T 0 all whom it may concern:

Be it known that I, WILLIAM W. DooLrr- TLE, a citizen of the United States, residing at Evanston, in the State of Illinois, have invented certain new and useful Improvements in Molding-Machines, of which the following is a specification. I

My invention relates to molding machines, and particularly to the apparatus for assembling the cores and surrounding mold. The invention has for its objects; to provide an assembling device whereby the cores may be accurately and rapidly positioned; to provide a device in which the mold may be shifted without jarring; and to provide a device in which all of the parts are freely movable and at the same time securely guided. These, and other objects are accomplished by my invention, one form of which. is shown in the accompanying drawing, in which Figure 1 is a plan view of the device;

Figure2 is a side elevation thereof, and

Figure 3 is a section through the track and carrier on the line III-III of Figure 1.

The apparatus is primarily designed for use with the mold forming and core forming mechanism illustrated in my oo-pending application Serial No. 229,887, and is intended toprovide a means whereby the green sand cores may be positioned inside of the sectional molds. Referring to Figures 1 and 2, 1 is the base of the device, preferably mounted upon the foundation which carries the cooperating mechanism shown in my co-pending application referred to, 2 is a guide frame provided at either end with anti-friction rollers 3 and at the center with upstanding guides 4, 5 are mold supporting tables mounted upon the anti-friction rollers 3 and adapted to carry sectional molds and to be moved towards and from each other, 6 are downwardly projecting guide members on the tables 55 for cooperatingwith the guide mem bers 4, 7 are stops placed at the ends of the tables 5 and adapted to position the sectional molds when placed upon the tables, 8 is a supporting rib provided with a plurality of bearings 9 upon its upper side for carrying the shafts 9 u onwhich the wheels 10 are secured, and 11 1s a core carrier of the cross sectional sha e shown in Figure 3, whereby a downward y projecting rib 12 on either side of the carrier cooperates with the grooved wheels 10 to prevent any lateral movement of the core carrier. The series of wheels 10 Specification of Letters Patent.

Patented May 26, 1908.

Serial No. 343,316.

constitute a track which may be of any desired length, for conveying the green sand core mounted upon the carrier 11, from the position of the formation of such core to aposition between the mold-carrying tables 5. In order that the carrier maybe accurately positioned longitudinally upon the track, a stop member 12 is provided at the end of the track.

In operation, the sectional half-molds are placed upon the tables 5 with their ends in engagement with the stops 7 whereby they are positioned accurately, the core carrier 11 is moved along the track until its end abuts against the stop 12 and the tables 5 are moved inwardly to embrace the core and bring the sides of the sectional molds together, after which such molds are secured together and the mold and core in assembled )osition removed for the casting operation. it will be apparent from the foregoing that the construction provides a convenient method of assembling the cores and molds, and that there is no arring or handlin of the cores. It will also be seen that the ro ers 3 provide for the easy movement of the tables 5 to and from their operative position, While at the same time such tables are securely guided in proper position by means of the cooperating members 4-6. It will further be ap arent that by means of the stops on the tab es and at the end of the carrier track, avery accurate positioning of the core in the mold is attained.

. Having thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent, is' the following:

1. In combination, a mold assembling table comprising guided opposing shelf members adapted to support the halves of a mold and to be moved toward each other, and an independent core supporting means slidably mounted for movement longitudinally of the shelf members.

2. In combination, a mold assembling table comprising guided o posing members adapted to support'the halves of a mold and to be moved toward each other, an independent core supporting means between the members, and positioning stops on the members and core supporting means.

3. In combination, a pair of mold supporting members mounted for movement toward and from each other, a track extending longitudinally therebetween, and a core carrier mounted for movement on the track transversely of the movement of the supporting members.

4. In combination, a pair of mold supporting members mounted for movement toward and from each other and each provided With means for positioning the molds, a track extending longitudinally therebetween, a core carrier mounted for movement on the track transversely of the movement of the supporting members, and a stop for positioning the carrier.

5. In combination, a pair of mold supporting members mounted for movement toward and from each other, a set of rollers intermediate the supporting members and a carrier mounted thereon for movement in a direction transverse to the movement of the supporting members.

6. The combination with a base, central track and a carrier thereon, of transversely movable mold supporting members 011 either side of the track, anti-friction rollers therefor, and supplemental uides on the supporting members for slidab ly enga ing the base.

In testimony whereof have hereunto signed my name in the presence of the two subscribed Witnesses.

WILLIAM W. DOOLITTLE.

Witnesses:

PAUL CARPENTER, JAMES NICHOLAS LORENZ. 

